Comparing Fractions - YourTeacher.com - Pre Algebra Help

For a complete lesson on comparing fractions, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn to compare fractions with the same denominator, which are called like fractions, by comparing the numerators. For example, to compare 7/9 and 4/9, note that 7 is greater than 4, so 7/9 is greater than 4/9. Students also learn to compare fractions with the different denominators, which are called unlike fractions, by first finding a common denominator, then comparing the numerators. For example, to compare 1/2 and 1/3, first find a common denominator, or the Least Common Multiple of 2 and 3, which is 6. To get 6 in the denominator of 1/2, multiply the numerator and denominator by 3, to get 3/6. To get 6 in the denominator of 1/3, multiply the numerator and denominator by 2, to get 2/6. Next, compare 3/6 and 2/6. Note that 3 is greater than 2, so 3/6 is greater than 2/6, which means that 1/2 is greater than 1/3.

Category:

Education

Tags:

• Comparing
• Fractions
• and
• Ordering
• compare
• order
• fractions
• how
• to
• math

[CooookieMonster12]

0.o HOW THE HELL DID U GET 3?

[bei7dit5]

In comparing 2 fractions, the simplest way is cross mulptiplication. Yours is a bit complicated! 5x12 =60, 8x7=56 therefore 5/8 is greater than 7/12.

[TheMusiclover0602]

@CooookieMonster12 Ikr!!!



[neverwrong450]

@CooookieMonster12 8x3=24 .....12x2=24 they have 24 in common..

[MrWhiteiscolour]

@bei7dit5 I agree with you.

[TheYeti123456]

@MasterXPaolo thank you so much

[thejerrbear11]

Why the hell is there a BF3 Commercial on a teaching video O_o

[EverythingMindless]

How did you get twoo ?



[MasterXPaolo]

Find the lowest common multiple of both fractions which is 24 and 8x3=24 and 12x2=24

[72dragonslayer]

@CooookieMonster12 if you use one of the lcm methods you will know that 8x3 is 24

[SimbaProductionsXoXo]

HOW THE HELL DID YOU GET 24?! ....

[SimbaProductionsXoXo]

@bei7dit5 but how did you come the conclusion that 5/8 is greater than 7/12 if your using denominators and numerators from BOTH fractions?